Confirmed. This feature now ships with the stable version (though disabled by default). This would indicate this is close to being ready for the prime-time. However, it's the lack of support for this feature from AddIns like LastPass that make using this option impossible. Is there an ETA on when this will be supported?

anyone else had issues with this? If LastPass is loaded new tabs will hang and eventually the whole browser will crash. If you disable LastPass it all works but that is just not feasible. Life without LastPass, not happening

This is now offered on the new nightly builds and you can enable it in about:config and Firefox.

Mozilla is going to turn on e10s on Nightly in a few weeks according to a post they made. Any chance LP will be updated to support e10s by then?

You have always updated LP pretty quickly in the past when things changed on Nightly. One reason I switched from RoboForm to LP was the fact that RF refused to update their program for anything but the official release.

At least have a pre-build ready for those of us that like to use Nightly to help the Fx developers solve any bugs. This is the reason they are turning on e10s.

The Nightly build of Firefox is going to turn on e10s in a week or so. Is LastPass being reworked to support e10s? LP has always kept up with the Nightly builds when things changed that affected LP. It would be nice to have an LP pre-build for the e10s Nightly to test out.

Sidenote.... I have old posts that were never replied to by LP. They are all moot at this time, but it says a lot about your support. Even my emails don't get answered.